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55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#ifndef cmVariableWatchCommand_h
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#define cmVariableWatchCommand_h
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <set>
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#include <string>
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#include <vector>
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#include "cm_memory.hxx"
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#include "cmCommand.h"
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class cmExecutionStatus;
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/** \class cmVariableWatchCommand
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* \brief Watch when the variable changes and invoke command
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*
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*/
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class cmVariableWatchCommand : public cmCommand
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{
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public:
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/**
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* This is a virtual constructor for the command.
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*/
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std::unique_ptr<cmCommand> Clone() override
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{
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return cm::make_unique<cmVariableWatchCommand>();
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}
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//! Default constructor
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cmVariableWatchCommand();
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//! Destructor.
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~cmVariableWatchCommand() override;
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/**
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* This is called when the command is first encountered in
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* the CMakeLists.txt file.
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*/
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bool InitialPass(std::vector<std::string> const& args,
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cmExecutionStatus& status) override;
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/** This command does not really have a final pass but it needs to
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stay alive since it owns variable watch callback information. */
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bool HasFinalPass() const override { return true; }
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protected:
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std::set<std::string> WatchedVariables;
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};
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#endif
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